# -*- coding: utf-8 -*-
#
# Copyright 2012-2015 Spotify AB
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

import os
import random
import shutil
import tempfile
import unittest

import mock
import pytest

import luigi
from luigi.contrib import scalding


class MyScaldingTask(scalding.ScaldingJobTask):
    scala_source = luigi.Parameter()

    def source(self):
        return self.scala_source


@pytest.mark.contrib
class ScaldingTest(unittest.TestCase):
    def setUp(self):
        self.scalding_home = os.path.join(tempfile.gettempdir(), "scalding-%09d" % random.randint(0, 999999999))
        os.mkdir(self.scalding_home)
        self.lib_dir = os.path.join(self.scalding_home, "lib")
        os.mkdir(self.lib_dir)
        os.mkdir(os.path.join(self.scalding_home, "provided"))
        os.mkdir(os.path.join(self.scalding_home, "libjars"))
        f = open(os.path.join(self.lib_dir, "scalding-core-foo"), "w")
        f.close()

        self.scala_source = os.path.join(self.scalding_home, "my_source.scala")
        f = open(self.scala_source, "w")
        f.write("class foo extends Job")
        f.close()

        os.environ["SCALDING_HOME"] = self.scalding_home

    def tearDown(self):
        shutil.rmtree(self.scalding_home)

    @mock.patch("subprocess.check_call")
    @mock.patch("luigi.contrib.hadoop.run_and_track_hadoop_job")
    def test_scalding(self, check_call, track_job):
        success = luigi.run(["MyScaldingTask", "--scala-source", self.scala_source, "--local-scheduler", "--no-lock"])
        self.assertTrue(success)
        # TODO: check more stuff
